Flutter's minimum supported Android version is now Lollipop (API 21). Beginning with Flutter's 3.22 stable release, Flutter will no longer work on devices running Android KitKat (API 19).
Original behavior
The context, purpose, and description of this deprecation can be found in the go/rfc-android-k-deprecation design document.
New behavior
Not stated in the source.
- Who is affected
- Any code still referencing the removed API will fail to compile after upgrading. Code that uses AndroidManifest.xml.
- Practical impact
- Compile errors until migrated; must be addressed before upgrading.
- What action should I take?
- Follow the official migration guide below, update affected call sites, run `dart fix --apply` where a fix is available, then run your tests.
Official migration guide (excerpt, © The Flutter Authors, CC BY 3.0)
Flutter developers targeting Android will need to increase the
minSdkVersion in their build.gradle and AndroidManifest.xml files
from 19 to at least 21.
AI_PROVIDER (for example to openai-compatible with a local Ollama or LM Studio endpoint) to enable grounded explanations. Everything else on this page works without an AI provider.Listed in the official breaking-changes index; title states removal.
An official announcement or migration guide documents an intended behaviour or API change. A verified source change (git diff) shows code changed but does not by itself prove a public API is breaking. AI interpretations are labelled and never used to classify a change.
- Source commit
- b3045439b7c0
- Source last updated
- Oct 21, 2026
- Last synchronized
- Oct 21, 2026
- Publication status
- published
Publication history
- Oct 21, 2026, 8:31 PM: new → published (ingestion) — Backed by an official breaking-change/migration guide.
AI_PROVIDER (for example to openai-compatible with a local Ollama or LM Studio endpoint) to enable grounded explanations. Everything else on this page works without an AI provider.